<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM – Open Source CRM application.
 * Copyright (C) 2014-2025 EspoCRM, Inc.
 * Website: https://www.espocrm.com
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Core\Utils;

/**
 * A system user utility.
 */
class SystemUser
{
    /**
     * A system user username.
     */
    public const NAME = 'system';

    private const ID = 'system';
    private const UUID = 'ffffffff-ffff-ffff-ffff-ffffffffffff';

    private string $id;

    public function __construct(Metadata $metadata, Config $config)
    {
        $id = $config->get('systemUserId');

        if ($id) {
            $this->id = $id;

            return;
        }

        $isUuid = $metadata->get(['app', 'recordId', 'dbType']) === 'uuid';

        $this->id = $isUuid ?
            self::UUID :
            self::ID;
    }

    /**
     * Get a system user ID.
     */
    public function getId(): string
    {
        return $this->id;
    }
}
